Head to Head
| Japan NPB | 2020/08/26 09:00 | Nippon Ham Fighters v Seibu Lions | W | 8-5 |
| Japan NPB | 2020/08/25 09:00 | Nippon Ham Fighters v Seibu Lions | W | 4-3 |
| Japan NPB | 2020/08/09 04:00 | Seibu Lions v Nippon Ham Fighters | W | 1-2 |
| Japan NPB | 2020/08/08 05:00 | Seibu Lions v Nippon Ham Fighters | W | 6-7 |
| Japan NPB | 2020/08/07 09:00 | Seibu Lions v Nippon Ham Fighters | W | 2-3 |
| Japan NPB | 2020/08/06 09:00 | Seibu Lions v Nippon Ham Fighters | W | 3-5 |
| Japan NPB | 2020/08/05 09:00 | Seibu Lions v Nippon Ham Fighters | L | 7-2 |
| Japan NPB | 2020/06/21 05:00 | Nippon Ham Fighters v Seibu Lions | W | 12-2 |
Home History
| Japan NPB | 2020/08/26 09:00 | Nippon Ham Fighters v Seibu Lions | W | 8-5 |
| Japan NPB | 2020/08/25 09:00 | Nippon Ham Fighters v Seibu Lions | W | 4-3 |
| Japan NPB | 2020/08/23 05:00 | Rakuten Eagles v Nippon Ham Fighters | W | 0-11 |
| Japan NPB | 2020/08/22 05:00 | Rakuten Eagles v Nippon Ham Fighters | W | 1-5 |
| Japan NPB | 2020/08/21 09:00 | Rakuten Eagles v Nippon Ham Fighters | L | 4-1 |
| Japan NPB | 2020/08/20 09:00 | Rakuten Eagles v Nippon Ham Fighters | D | 3-3 |
| Japan NPB | 2020/08/19 09:00 | Rakuten Eagles v Nippon Ham Fighters | L | 12-2 |
| Japan NPB | 2020/08/18 09:00 | Rakuten Eagles v Nippon Ham Fighters | W | 4-9 |
Away History
| Japan NPB | 2020/08/26 09:00 | Nippon Ham Fighters v Seibu Lions | L | 8-5 |
| Japan NPB | 2020/08/25 09:00 | Nippon Ham Fighters v Seibu Lions | L | 4-3 |
| Japan NPB | 2020/08/23 04:00 | Seibu Lions v Orix Buffaloes | L | 5-6 |
| Japan NPB | 2020/08/22 05:00 | Seibu Lions v Orix Buffaloes | L | 2-5 |
| Japan NPB | 2020/08/21 09:00 | Seibu Lions v Orix Buffaloes | L | 1-3 |
| Japan NPB | 2020/08/20 09:00 | Seibu Lions v Orix Buffaloes | W | 6-4 |
| Japan NPB | 2020/08/19 09:00 | Seibu Lions v Orix Buffaloes | W | 4-3 |
| Japan NPB | 2020/08/18 09:00 | Seibu Lions v Orix Buffaloes | W | 3-1 |